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|
#!@SHELL@
# Define variables
scandir="/run/openrc/s6-scan"
statfile=/dev/shm/s6-svstat.${USER}
color_red='\E[01;31m'
color_green='\E[32m'
color_yellow='\E[01;33m'
# Time Modules
uptimeModules() {
# Given a single integer argument representing seconds of uptime...
# convert uptime to a friendly human readable string: '2d 16h 58m 46s'
# define a variable to keep track of the longest length uptime string
uSec=${1:-0}
uDay=$(( $uSec / 86400 ))
uSec=$(( $uSec % 86400 ))
uHour=$(( $uSec / 3600 ))
uSec=$(( $uSec % 3600 ))
uMin=$(( $uSec / 60 ))
uSec=$(( $uSec % 60 ))
[ $uDay -ne 0 ] && pDay="${uDay}d " || pDay=""
[ $uHour -ne 0 ] && pHour="${uHour}h " || pHour=""
[ $uMin -ne 0 ] && pMin="${uMin}m " || pMin=""
[ $uSec -ne 0 ] && pSec="${uSec}s " || pSec=""
parsedUptime="$( echo ${pDay}${pHour}${pMin}${pSec} | sed 's#[ \t]*$##' )"
uCharCount=${#parsedUptime}
}
# Make sure we are running as root
if [ $(id -u) != 0 ]; then
printf "This command must be run as root\n"
exit 1
fi
# Make sure scandir exists
if [ ! -d $scandir ]; then
printf "%s\n" "$scandir does not exist"
exit 1
fi
# Make sure s6-svscan is running
if ! pgrep s6-svscan >/dev/null ; then
printf "s6-svscan is not running\n"
exit 1
fi
# If TERM is undefined (launching sstat through an ssh command) then make it vt100
if [ -z $TERM -o $TERM = "dumb" ]; then
export TERM=vt100
fi
# Gather list of candidate services s6-supervise may be supervising
# filter for folders and symlinks at /run/openrc/s6-scan/* ommiting output starting with '.'
services="$(find $scandir -maxdepth 1 -mindepth 1 \( -type d -or -type l \) | awk -F'/' '{ if ( $NF !~ "^\\." ) print $NF}')"
if [ -z "$services" ]; then
printf "s6 found no services configured for supervision\n"
exit 1
fi
# Gather status for each service from s6-svstat
# write to tmp file in memory for non I/O bound repeatative access
rm -f $statfile 2>/dev/null
for service in $services ; do
echo "$service $(s6-svstat ${scandir}/${service})" >> $statfile
done
# Define longest string from parsed uptime (default to 7 to match string length of 'Up Time')
timeStringLength=7
for uptime in $(awk '$2 == "up" {print $5}' $statfile | sort -run)
do
uptimeModules $uptime
[ ${uCharCount} -gt $timeStringLength ] && timeStringLength=$uCharCount
done
# Print the status header like so...
# Service Name State PID Up Time Start Time
#---------------------------- ----- ----- -------------- -------------------
printf "\n"
printf "%28s %5s %5s %${timeStringLength}s %19s\n" "Service Name" "State" "PID" "Up Time" "Start Time"
for dashes in 28 5 5 $timeStringLength 19 ; do
printf "%0.s-" $(seq 1 $dashes) ; echo -n ' '
done && printf "\n"
# sshd up (pid 26300) 80373 seconds
cat $statfile | \
while read line
do
set $line
service=$1
state=$2
pid=${4/)/}
time=$5
# call function to convert time in seconds and define additional variables
uptimeModules $time
if [ "$state" = up ]; then
if [ $time -lt 30 ]; then
# uptime < 30 seconds, color the whole line yellow
echo -en "$color_yellow"
# 1st 4 columns are printed with printf for space padding
printf "%28s %5s %5s %${timeStringLength}s" $service $state $pid "$parsedUptime"
# 4th column is output from date -d
echo -e " $(date -d "${time} seconds ago" "+%F %T")"
# reset terminal colors
tput sgr0
else
printf "%28s" $service
# uptime > 30 seconds, color just the "state" value green
echo -en "$color_green"
printf " %5s" $state
# reset terminal colors
tput sgr0
printf " %5s" $pid
printf " %${timeStringLength}s" "$parsedUptime"
echo -e " $(date -d "${time} seconds ago" "+%F %T")"
fi
else
printf "%28s" $service
echo -en "$color_red"
printf " %5s" $state
tput sgr0
echo ""
fi
done
# Cleanup
rm -f $statfile 2>/dev/null
printf "\n\n"
rc-status
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